Product Details | BOSS TEE

4730-00-278-2779 A fitting having three connections with the branch connection fixed at 90 degrees (1.5705 radians) to the run. The connections have external or internal machine threads (straight threads other than pipe or hose series), and are designed to facilitate a gasket, preformed packing, washer, or the like, to form a seal at the boss. It may have side inlet(s). It is used as a junction at the intersection of a boss or boss fitting on items such as tanks, housings, valve fittings, and the like. Excludes TEE, TUBE.

Part Alternates: AN92610D, AN926-10D, AN926D10, AN93810D, AN938-10D, AN938D10, 3117195, 4730-00-278-2779, 00-278-2779, 4730002782779, 002782779

Pipe, Tubing, Hose, and Fittings | Hose, Pipe, Tube, Lubrication, and Railing Fittings

Supply Group (FSG) NSN Assign. NIIN
47 01 JAN 1961 00-278-2779

Demand History | NSN 4730-00-278-2779

Part Number Request Date QTY Origin
4730-00-278-2779 2024-05-143 25 DIBBS
4730-00-278-2779 2024-04-102 40 DIBBS
4730-00-278-2779 2022-09-249 32 DIBBS
4730-00-278-2779 2013-05-125 69 DIBBS
4730-00-278-2779 2013-05-122 4 DIBBS

Cross Reference | NSN 4730-00-278-2779

Part Number Cage Code Manufacturer
112740194 A0199 OTO MELARA SPA
3117195 001JK EMBRAER S/A
3117195 S4956 EMBRAER EMPRESA BRASILEIRA DE AERONAUTICA SA
AN926-10D 88044 AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
AN926D10 88044 AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
AN938-10D 88044 AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
AN938-10D 88277 BOEING COMPANY, THE DBA BOEING
AN938-10D 97499 BELL HELICOPTER TEXTRON INC.
AN938D10 27881 HYDRO FLEX INC
AN938D10 88044 AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
AS4875 81343 SOCIETY OF AUTOMOTIVE ENGINEERS INC
AS5192D10 81343 SOCIETY OF AUTOMOTIVE ENGINEERS INC

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Technical Data | NSN 4730-00-278-2779

Characteristic Specifications
MATERIAL ALUMINUM ALLOY OVERALL
SURFACE TREATMENT ANODIZE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION TYPE THREADED INTERNAL BOSS ALL ENDS
CONNECTION STYLE B9 GASKET SEAL ALL ENDS
THREAD SERIES DESIGNATOR UNJF ALL ENDS
NOMINAL THREAD SIZE 0.875 INCHES ALL ENDS
THREAD CLASS 3B ALL ENDS
LEG LENGTH 1.164 INCHES NOMINAL ALL ENDS
SPECIFICATION/STANDARD DATA 88044-AN926 GOVERNMENT STANDARD
MANUFACTURERS CODE 88044
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE AN926-10D

Restrictions/Controls & Freight Information | NSN 4730-00-278-2779

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information